The impact of real income on insurance premiums: Evidence from panel data

摘要

This study applies a recently-developed panel smooth transition regression (PSTR) model and takes into account the potential endogeneity biases in order to establish country-specific and time-specific elasticities of insurance premiums with respect to real income for 36 selected countries from the period 1979-2007. The PSTR model endogenously determines the non linear insurance-income nexus and allows for a continuum of an intermediate regime among extremes. We find overwhelming evidence in support of a non-linear income threshold. The life and non-life insurance premiums are inelastic and elastic with respect to real income, suggesting that they are a necessary good and luxury good respectively. Furthermore, as time goes on, the income elasticities of insurance premiums present a similar upward trend, implying that the impact of economic development on insurance premiums is more important in recent periods.